111210132231 has 12 divisors (see below), whose sum is σ = 175240208520. Its totient is φ = 67400080080.

The previous prime is 111210132227. The next prime is 111210132239. The reversal of 111210132231 is 132231012111.

It is not a de Polignac number, because 111210132231 - 2² = 111210132227 is a prime.

It is a super-2 number, since 2×111210132231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111210132239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 561667236 + ... + 561667433.

It is an arithmetic number, because the mean of its divisors is an integer number (14603350710).

Almost surely, 2^111210132231 is an apocalyptic number.

111210132231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111210132231 is a deficient number, since it is larger than the sum of its proper divisors (64030076289).

111210132231 is a wasteful number, since it uses less digits than its factorization.

111210132231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123334686 (or 1123334683 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 111210132231 its reverse (132231012111), we get a palindrome (243441144342).

The spelling of 111210132231 in words is "one hundred eleven billion, two hundred ten million, one hundred thirty-two thousand, two hundred thirty-one".